Sash lock



J. LIPANI SASH LpcK Aug. 26, 1947.

Filed April 30, 1945 2 Sheets-Sheet l INVENTOR. (fox/w [/PA/V/ J. LlPANlSASH LOOK Filed April 30, 1945 Aug. 26, 1947.

2 Sheets-Sheet 2 'INVENTOR.

Patented Aug. 26, 1947 UNITED STATES PATENT OFFICE SASH LOOK JosephLipani, Brooklyn, N. Y., assignor of onehalf to Vincent Casella,Brooklyn, N. Y.

Application April 30, 1945, Serial No. 590,990

6 Claims. 7 1

My invention relates to improvements in means for securing window sashesor analogous movable structural parts in either open or closedpositions, or in any intermediate position.

Further, said invention has for its object to provide a device of thecharacter specified in which the locking means is, in part, carried byone sash or movable member, and, in part, by another sash or by aportion of the window casing in which the sash works.

Further said invention has for its object to provide a device of thecharacter specified in which one member or part is mounted upon amovable window sash, and is adapted to engage with a cooperating memberfixed upon th'e other sash or upon a portion of the window casing inwhich the sash works.

Further, said invention has for its object to provide a device of thecharacter specified in which the member of the locking device carried bythe movable sash frame is movably mounted to permit of its readyadjustment to operative or inoperative position.

Further, said invention has for its object to provide a locking devicein which the engaging member or part carried by the movable sash framemay be positively secured to a, position in or out of engagement withthe member fixed upon the other sash or part.

Further, said invention has for its object to provide a locking deviceof the character specified in which a longitudinal member is fixedlysecured to one sash or window part, and a cooperating member comprisinga pair of pivoted jaws mounted upon a movable sash adapted to engagesaid fixedly secured member at any point throughout its length to secureone or both sashes in open, closed or intermediate positions.

Other objects will, in part, be obvious, and, in part, be hereinafterdescribed, and then pointed out in the claims.

In the accompanying drawings- Figure 1 is a side elevation, partly insection on the line l-l' of Fig. 2, showing one form of lockingmechanism constructed according to, and embodying my said invention;

Fig. 2 is a transverse section on the line 22 of Fig. 1 showing theclamping means in retracted position;

Fig. 3 is a view similar to Fig. 2 showing the clamping means inprojected position and engaging the cooperating channel member;

Fig. 4 is a perspective view partly in section showing portion of awindow casing and sash and Fig. 5 is an enlarged detail side elevationof the clamping jaws and support.

In said drawings I0 designates a window casing of well-known formprovided with upper and lower sash frames ll, [2, respectively, whichWork between guide strips l3, l3 and the intermediate parting strip l4.

Upon the inner side of the vertical member l5 of the upper sash frame II is provided a channel member l6 which is secured in fixed positionthereon by screws IT. The forwardly-extending side members of saidchannel member 'are each provided with a series of spaced circularapertures [8. In order to insure the proper operation of the sashframes, the lower sash frame I2 is provided in its upper transversemember with a vertical recess l2 to accommodate the channel member I6.

Upon the upper side of the upper. transverse frame member [9 of thelower sash frame [2 is mounted a locking device comprising a base plate20 having a raised central longitudinal portion 2| forming a recess 22in the underside thereof. The raised central portion 2| is provided witha longitudinal slot 23 through which extends the stem of a bolt 24having a square head 24 which is slidable within the recess 22 of thebase plate 20.

'25 denotes a pair of spring-pressed jaws which are providedintermediate their ends with inwardly-extending overlapping ears 26through which extends the bolt 24 serving to hold said jaws pivotallyconnected. The rear ends of said laws 25 are maintained normallyseparated by a spring 2! disposed between said rear ends and held inplace by stops 28 projecting from the inner sides of said rear ends.

The clamping jaws 25 are secured by a circular knurled head 29 Workingupon the upper end of the bolt 24. The head 29 is provided on itsunderside with a circular series of apertures 30 to be engaged by a stud3| at the free end of a fiat spring 32 keyed to the stem of the bolt 24;to lock the head 29 to its adjusted position upon the bolt 24'.

The forward ends of said clamping jaws 25 are provided with short,inwardly-extending studs 33 adapted to engage with the apertures I8 inthe channel member I6. The forward ends of said clamping jaws 25 arepreferably slightly oiTset in order that the sides thereof may fullyengage with the outer sides of the channel member I6 when the studs 33are in due engagement with the apertures Hi to hold the sashes firmlyand positively locked to adjusted positions.

The operation of the locking device will be largely obvious from theforegoing description. It should be noted, however, that the clampingjaws 25 bein movably or slidably mounted the same may be moved bodilyinto and out of position to engage with the channel member IE, and thuspermit of the usual or normal raising and lowering of either sash, andthat only when the sashes are to be locked in position does it becomenecessary to shift the clamping jaw 25 forwardly beyond the edge of thetransverse frame member of the lower sash to render said clamping jaws25 engageable with the channel member l6.

Further, it is to be noted that when the clamping jaws are adjusted tooperative position and engaging the channel member iii, the same areautomatically locked in position by the looking spring 32 and stud3lthereon engaging the recesses as in the knurled head 29 of the bolt24.

To release the clamping jaws 25, it becomes necessary to first depressthe free end of the spring 32 to release the stud 3| thereon of itsengagement with the head 29, and hold the same depressed until the head29 has been unscrewed sufficiently to release the pressure on the jaws25 whereupon the outer ends thereof may be compressed and the jaws movedbodily to inoperative position.

It will be obvious, that the channel member may be secured to the windowcasing above the lower sash and between the guide strip l3 and partingstrip M, in which event the sash cord or chain would be disposed withinthe channel member l6, and the clamping jaws disposed longitudinallyupon the transverse member of the lower sash frame l2.

From the above, it is apparent that the channel member 16 serves as anelongated member which is rigidly fixed on one of a plurality ofrelatively movable structural parts, and cooperating therewith is amember mounted on the other of such parts, such cooperating memberincluding a base which is provided with suitable means slidably mountedon such base and when arranged in projected position to embrace suchelongated member, and such base further provided with suitable means forsecuring the slidable means in its respective operative, i. e., lockingposition, and non-operative, i. e., non-locking, position, combined withsuitable means for looking such securing means to desired adjustedposition.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. A look of the character described for securing a plurality ofstructural parts, of which at least one is movably mounted relative tothe other thereof; said lock comprising an elongated member rigidlyfixed on one of said parts, and a member on the other of said partscooperating with said elongated member, said cooperating memberincluding a base fixed on the other of said parts, a pair of clampingjaws adjustably mounted on said base and adapted to be moved into andout of engagement with said elongated member.

2. A look of the character described for secur ing a plurality ofstructural parts, of which at least one is movably mounted relative tothe other thereof; said lock comprising an elongated channel memberrigidly fixed on one of said parts, and having apertures in the sides te mounted upon said bolt and and a member on the other of said partscooperating with said elongated member, said cooperating memberincluding a base fixed upon said movablestructural part, a pair ofspringpressed clamping members having projections upon the opposingfaces thereof adapted to engage with the apertures in said elongatedchannel member, said clamping members being adjustably mounted on saidbase, and means for securing said clamping members to adjustedpositions.

3. A lock of the character described for securing a plurality ofstructural parts, of which at least one is movably mounted relative tothe other thereof; said lock comprising an elongated channel memberrigidly fixed on one of said parts and having registering apertures inthe sides thereof, and a member mounted on the other of said parts andcooperating with said elongated channel member, said cooperating memberincluding a base fixed upon said movable structural part, a pair ofspring-pressed clamping jaws slidably mounted upon said base and havinginwardly-extending projections upon the opposing faces thereof adaptedto engage with apertures in said elongated channel member, means forsecuring said clamping jaws to adjusted position upon said base, andmeans for locking said securing means in operative position.

4. A look of the character described for securing a plurality of windowframe parts, of which at least one is movably mounted relative to theother thereof; said lock comprising an elongated channel member rigidlyfixed on one of said window frame part-s and having registeringapertures in the sides thereof, and a member mounted on the other ofsaid window frame parts and 00- operating with said elongated channelmember, said cooperating member including a base fixed upon said movablewindow frame part, a bolt on said base, a pair of spring-pressedclamping jaws mounted upon said bolt slidable upon said base and havinginwardly-extending projections upon the opposing faces thereof adaptedto engage with apertures in said elongated channel member, a nut on saidbolt for securing said clamping jaws in position upon said base, andmeans for locking said nut in securing position.

5. A lock of the character described for secur ing a plurality of sashframes, of which at least one is movably mounted relative to the otherthereof; said lock comprising an elongated channel member rigidly fixedon one of said frame parts and having registering apertures in the sidesthereof, and a member mounted on the other of said frame parts andcooperating with said elongated channel member, said cooperating memberincluding a base fixed upon one of said frame parts, a slotted, recessedchannel in said base, a bolt movably disposed in said recessed channel,a pair of spring-pressed clamping jaws having inwardlyextendingprojections upon the opposing faces thereof adapted to engage withapertures in said elongated channel member, a nut on said bolt forsecuring said clamping jaws in position upon said base, said nut havingrecesses therein, and a spring detent engaging the recesses in said nutfor securing the same and said clamping jaws in adjusted position.

6. A look of the character described for securing a plurality ofstructural parts, of which at least one is movably mounted relative tothe other thereof, said lock comprising an elongated member rigidlyfixed on one of said parts and a cooperating member mounted on the otherof said REFERENCES CITED parts Said cooperating member including baseThe following references are of record in the means slidably mounted onsaid base and arfile of this patent:

ranged when in projected position to embrace said elongated member;means for securing said slid- 5 UNITED STATES PATENTS able means in itsrespective operative and non- Number Name Date operative positions; andmeans for locking said 436,926 Richardson -1 Sept. 23, 1890 securingmeans to desired adjusted position. 55 ,61 Fleming Jan. 7, 1896 817,521Saunders, Jr. Apr. 10, 1906 JOSEPH LIPANI. 10 2,130,465 Kelly Sept. 20,1938

